Method of protecting wood in salt water.



G. SGHUMAGHBR; METHOD 0F PBOIEGTING- WOODIIN SALT WALTER.

APPLICATION FILED EU. 1Q', 1911.

- Patented lOct. l1,1912.

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CANADA.

METHOD F PRTETilG W'OGD N SALT WATER.

ith @lievitare it @nog concern y ,lde it known that l, Gnonononn'nnwnnn,

efcitizen ot the Dominion of Canada, residY ing i/'iincouver in the Provinceot British lil' 'natur-elly suitable for the purpose of pro tection here referred to ii it can-'oe applied in ey manner that will e'ect the desired result. The diiiiculties in this application are, that -2is the specificgravit-y of chlorinated seo, Water isslightly greater than that water in the natural state., it tliechlorinntion is toward the bottoni oi the pile, orVv gfround-iline, Where the attack of the teredoy is iirs'lv end most strongly mede.l the `protection may not extend much above that part of the pile; and it 'the chlorination of? the water isele-cted. et or vedjlament to the surface et the Water the tidal currents will carry the chlorinated water away from the structure, oi the pile before' it descends tol the `ground level. These diiiic'ulties. in application lieveo'rereome by associating chlorin with compressed ali', nd by delivering the compressed ein engl iclnlorin gos et or edc jacent to the lower level@ the structurel :in this practice the commessedeirj owing; to its specific lei/ityj Willi when delivered, unniedietely vascend through the water to the surface and in that. ascent the chlorin gas will he dissolved in the water. rlhe chlorination of the 'Water in the immediterinicit-y out the struct-info. :md trom' the lower to the higher level, ot it Willthus he ellected The particular eppnll'etus, by which this 4chlorii'iation is carried into practical eil'ect is not yet i'ully Worked out hut will he sonnewhat as follows: lin reference to the draw-A ing, which accompanies this specification, 2 represents e 'wharf structure oi' Wooden piles., the ground line and Water level beingl indiceted. in order to render the apparatus l spenicanon of Leners ement. Application tiled ecemberll, 1911. Seria ilo. 665,766,

fr delivering 'into e reservoir 5.

ltlntented Get. 1, 1912.

portable so as to he applicable over an ezttent or u-'hnrfage 1n a harbor; (tor it inust be understood that Ithe treatment only re quires to be periodic), the apparatus is prefeinbly .fis shown in the, drawing herewith; mounted 'onnberge or scow represented by Mounted on this berge 3 is en air pump Adjacent to this is :i cylinder 6 containing chlorin connection from which cylinder is madev to e pipe 7 from the compressed air .reservoir 5, the delivery of ooth compressed air 'and chlorin being controlled. by suitable valves. A reducing; vnl-'ve 9 should be introduced in the connection 7 from the com-v pressed air reservoir by which the pressure oi the air to he delivered, when chlorinated, may

,'oe regulated, irrespective of the pressure in the reservoir, to loe slightly in excess ot that necessary to deliver in the required depth oit Water, After chlorination ot the air, which may he eiiiectcd hy combining nozzles at the connection l0 ot trie two pipes, the chlorinated air is delivered to the foot of the pile structure 'icy n pipe ll which may be pivotslly connected el the barge und may be telescopic so :is to he extensiblev to varying depths.

The chlorin may he generated on the barge by any approved method, or may he furnished hy manufacturers in a dry com pressed form in suitable containers.

rlhe manner ot :idmixture of the gus with the medium of delivery' or the particular manner by which the delivery below Witter is effected is not material to the `subject met ter of this invention, the substance of which is the deli'wsmT below Water oi' clilorin @as in association with u 'incdiunithat will carry it to the surface immediately on delivery sind that. will allow the chlorin to mix readily 'with the ses Writer during such ascent.

Hering new particularly described. the nature ot this invention and the manner of its possible application to eiiectthe desired object, l2 hereby declare that what l clsmnv as new and desire to be protected in by lletters Patent, is:

l.. A. method ci protecting Wooden articles in salt Water which consists in delivering to a point. adjacent to the lower end of'seid article' chlorin gas in ssociation-With a# medium specifically lighter than the Water, and which. `will' Anot unite with the chlorin or readily dissolve in or unite with thev In testimony whereof I have signed lmy water. Y name to this specicatlon in. the presence of 2. A method for protecting Wooden artwo subscribing Witnesses.4 ticles in salt Water which consists in deliver- GEORGE SCHUMACHER.

5 ing to a` point adjacem` to the lower end of Witnesses:

said article beneath the surface of the wat/er; ROWLAND BRITTAIN, compressed eir' mixed wit-l1 chlorin gee. W. B, ELLIS. 

